/
cogdriver.cpp
1232 lines (1121 loc) · 48.7 KB
/
cogdriver.cpp
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/******************************************************************************
*
* Project: COG Driver
* Purpose: Cloud optimized GeoTIFF write support.
* Author: Even Rouault <even dot rouault at spatialys dot com>
*
******************************************************************************
* Copyright (c) 2019, Even Rouault <even dot rouault at spatialys dot com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include "gdal_priv.h"
#include "gtiff.h"
#include "gt_overview.h"
#include "gdal_utils.h"
#include "gdalwarper.h"
#include "cogdriver.h"
#include "geotiff.h"
#include "tilematrixset.hpp"
#include <algorithm>
#include <memory>
#include <vector>
extern "C" CPL_DLL void GDALRegister_COG();
/************************************************************************/
/* HasZSTDCompression() */
/************************************************************************/
static bool HasZSTDCompression()
{
TIFFCodec *codecs = TIFFGetConfiguredCODECs();
bool bHasZSTD = false;
for( TIFFCodec *c = codecs; c->name; ++c )
{
if( c->scheme == COMPRESSION_ZSTD )
{
bHasZSTD = true;
break;
}
}
_TIFFfree( codecs );
return bHasZSTD;
}
/************************************************************************/
/* GetTmpFilename() */
/************************************************************************/
static CPLString GetTmpFilename(const char* pszFilename,
const char* pszExt)
{
CPLString osTmpFilename;
osTmpFilename.Printf("%s.%s", pszFilename, pszExt);
VSIUnlink(osTmpFilename);
return osTmpFilename;
}
/************************************************************************/
/* GetResampling() */
/************************************************************************/
static const char* GetResampling(GDALDataset* poSrcDS)
{
return poSrcDS->GetRasterBand(1)->GetColorTable() ? "NEAREST" : "CUBIC";
}
/************************************************************************/
/* COGGetWarpingCharacteristics() */
/************************************************************************/
static
bool COGGetWarpingCharacteristics(GDALDataset* poSrcDS,
const char * const* papszOptions,
CPLString& osResampling,
CPLString& osTargetSRS,
int& nXSize,
int& nYSize,
double& dfMinX,
double& dfMinY,
double& dfMaxX,
double& dfMaxY,
std::unique_ptr<gdal::TileMatrixSet>& poTM,
int& nZoomLevel,
int& nAlignedLevels)
{
osTargetSRS = CSLFetchNameValueDef(papszOptions, "TARGET_SRS", "");
CPLString osTilingScheme(CSLFetchNameValueDef(papszOptions,
"TILING_SCHEME", "CUSTOM"));
if( EQUAL(osTargetSRS, "") && EQUAL(osTilingScheme, "CUSTOM") )
return false;
CPLString osExtent(CSLFetchNameValueDef(papszOptions, "EXTENT", ""));
CPLString osRes(CSLFetchNameValueDef(papszOptions, "RES", ""));
if( !EQUAL(osTilingScheme, "CUSTOM") )
{
poTM = gdal::TileMatrixSet::parse(osTilingScheme);
if( poTM == nullptr )
return false;
if( !poTM->haveAllLevelsSameTopLeft() )
{
CPLError(CE_Failure, CPLE_NotSupported,
"Unsupported tiling scheme: not all zoom levels have same top left corner");
return false;
}
if( !poTM->haveAllLevelsSameTileSize() )
{
CPLError(CE_Failure, CPLE_NotSupported,
"Unsupported tiling scheme: not all zoom levels have same tile size");
return false;
}
if( poTM->hasVariableMatrixWidth() )
{
CPLError(CE_Failure, CPLE_NotSupported,
"Unsupported tiling scheme: some levels have variable matrix width");
return false;
}
osTargetSRS = poTM->crs();
// "Normalize" SRS as AUTH:CODE
OGRSpatialReference oTargetSRS;
oTargetSRS.SetFromUserInput(osTargetSRS);
const char* pszAuthCode = oTargetSRS.GetAuthorityCode(nullptr);
const char* pszAuthName = oTargetSRS.GetAuthorityName(nullptr);
if( pszAuthName && pszAuthCode )
{
osTargetSRS = pszAuthName;
osTargetSRS += ':';
osTargetSRS += pszAuthCode;
}
}
CPLStringList aosTO;
aosTO.SetNameValue( "DST_SRS", osTargetSRS );
void* hTransformArg = nullptr;
OGRSpatialReference oTargetSRS;
oTargetSRS.SetFromUserInput(osTargetSRS);
const char* pszAuthCode = oTargetSRS.GetAuthorityCode(nullptr);
const int nEPSGCode = pszAuthCode ? atoi(pszAuthCode) : 0;
// Hack to compensate for GDALSuggestedWarpOutput2() failure (or not
// ideal suggestion with PROJ 8) when reprojecting latitude = +/- 90 to
// EPSG:3857.
double adfSrcGeoTransform[6];
std::unique_ptr<GDALDataset> poTmpDS;
if( nEPSGCode == 3857 &&
poSrcDS->GetGeoTransform(adfSrcGeoTransform) == CE_None &&
adfSrcGeoTransform[2] == 0 &&
adfSrcGeoTransform[4] == 0 &&
adfSrcGeoTransform[5] < 0 )
{
const auto poSrcSRS = poSrcDS->GetSpatialRef();
if( poSrcSRS && poSrcSRS->IsGeographic() )
{
double maxLat = adfSrcGeoTransform[3];
double minLat = adfSrcGeoTransform[3] +
poSrcDS->GetRasterYSize() *
adfSrcGeoTransform[5];
// Corresponds to the latitude of below MAX_GM
constexpr double MAX_LAT = 85.0511287798066;
bool bModified = false;
if( maxLat > MAX_LAT )
{
maxLat = MAX_LAT;
bModified = true;
}
if( minLat < -MAX_LAT )
{
minLat = -MAX_LAT;
bModified = true;
}
if( bModified )
{
CPLStringList aosOptions;
aosOptions.AddString("-of");
aosOptions.AddString("VRT");
aosOptions.AddString("-projwin");
aosOptions.AddString(CPLSPrintf("%.18g", adfSrcGeoTransform[0]));
aosOptions.AddString(CPLSPrintf("%.18g", maxLat));
aosOptions.AddString(CPLSPrintf("%.18g", adfSrcGeoTransform[0] + poSrcDS->GetRasterXSize() * adfSrcGeoTransform[1]));
aosOptions.AddString(CPLSPrintf("%.18g", minLat));
auto psOptions = GDALTranslateOptionsNew(aosOptions.List(), nullptr);
poTmpDS.reset(GDALDataset::FromHandle(
GDALTranslate("", GDALDataset::ToHandle(poSrcDS), psOptions, nullptr)));
GDALTranslateOptionsFree(psOptions);
if( poTmpDS )
{
hTransformArg = GDALCreateGenImgProjTransformer2(
GDALDataset::FromHandle(poTmpDS.get()), nullptr, aosTO.List() );
}
}
}
}
if( hTransformArg == nullptr )
{
hTransformArg =
GDALCreateGenImgProjTransformer2( poSrcDS, nullptr, aosTO.List() );
}
GDALTransformerInfo* psInfo = static_cast<GDALTransformerInfo*>(hTransformArg);
double adfGeoTransform[6];
double adfExtent[4];
if ( GDALSuggestedWarpOutput2( poSrcDS,
psInfo->pfnTransform, hTransformArg,
adfGeoTransform,
&nXSize, &nYSize,
adfExtent, 0 ) != CE_None )
{
GDALDestroyGenImgProjTransformer( hTransformArg );
return false;
}
GDALDestroyGenImgProjTransformer( hTransformArg );
hTransformArg = nullptr;
poTmpDS.reset();
dfMinX = adfExtent[0];
dfMinY = adfExtent[1];
dfMaxX = adfExtent[2];
dfMaxY = adfExtent[3];
double dfRes = adfGeoTransform[1];
if( poTM )
{
const bool bInvertAxis =
oTargetSRS.EPSGTreatsAsLatLong() != FALSE ||
oTargetSRS.EPSGTreatsAsNorthingEasting() != FALSE;
const auto& bbox = poTM->bbox();
if( bbox.mCrs == poTM->crs() )
{
if( dfMaxX < (bInvertAxis ? bbox.mLowerCornerY : bbox.mLowerCornerX) ||
dfMinX > (bInvertAxis ? bbox.mUpperCornerY : bbox.mUpperCornerX) ||
dfMaxY < (bInvertAxis ? bbox.mLowerCornerX : bbox.mLowerCornerY) ||
dfMinY > (bInvertAxis ? bbox.mUpperCornerX : bbox.mUpperCornerY) )
{
CPLError(CE_Failure, CPLE_AppDefined,
"Raster extent completely outside of tile matrix set bounding box");
return false;
}
}
const auto& tmList = poTM->tileMatrixList();
const int nBlockSize = atoi(CSLFetchNameValueDef(
papszOptions, "BLOCKSIZE", CPLSPrintf("%d", tmList[0].mTileWidth)));
const double dfOriX = bInvertAxis ? tmList[0].mTopLeftY : tmList[0].mTopLeftX;
const double dfOriY = bInvertAxis ? tmList[0].mTopLeftX : tmList[0].mTopLeftY;
double dfComputedRes = adfGeoTransform[1];
double dfPrevRes = 0.0;
dfRes = 0.0;
for( ; nZoomLevel < static_cast<int>(tmList.size()); nZoomLevel++ )
{
dfRes = tmList[nZoomLevel].mResX * tmList[0].mTileWidth / nBlockSize;
if( dfComputedRes > dfRes || fabs( dfComputedRes - dfRes ) / dfRes <= 1e-8 )
break;
dfPrevRes = dfRes;
}
if( nZoomLevel == static_cast<int>(tmList.size()) )
{
CPLError(CE_Failure, CPLE_AppDefined,
"Could not find an appropriate zoom level");
return false;
}
if( nZoomLevel > 0 && fabs( dfComputedRes - dfRes ) / dfRes > 1e-8 )
{
const char* pszZoomLevelStrategy = CSLFetchNameValueDef(papszOptions,
"ZOOM_LEVEL_STRATEGY",
"AUTO");
if( EQUAL(pszZoomLevelStrategy, "LOWER") )
{
nZoomLevel --;
}
else if( EQUAL(pszZoomLevelStrategy, "UPPER") )
{
/* do nothing */
}
else
{
if( dfPrevRes / dfComputedRes < dfComputedRes / dfRes )
nZoomLevel --;
}
dfRes = tmList[nZoomLevel].mResX * tmList[0].mTileWidth / nBlockSize;
}
CPLDebug("COG", "Using ZOOM_LEVEL %d", nZoomLevel);
const double dfTileExtent = dfRes * nBlockSize;
int nTLTileX = static_cast<int>(std::floor((dfMinX - dfOriX) / dfTileExtent + 1e-10));
int nTLTileY = static_cast<int>(std::floor((dfOriY - dfMaxY) / dfTileExtent + 1e-10));
int nBRTileX = static_cast<int>(std::ceil((dfMaxX - dfOriX) / dfTileExtent - 1e-10));
int nBRTileY = static_cast<int>(std::ceil((dfOriY - dfMinY) / dfTileExtent - 1e-10));
nAlignedLevels = std::min(std::min(10, atoi(
CSLFetchNameValueDef(papszOptions, "ALIGNED_LEVELS", "0"))), nZoomLevel);
int nAccDivisor = 1;
for( int i = 0; i < nAlignedLevels - 1; i++ )
{
const int nCurLevel = nZoomLevel - i;
const double dfResRatio =
tmList[nCurLevel-1].mResX / tmList[nCurLevel].mResX;
// Magical number that has a great number of divisors
// For example if previous scale denom was 50K and current one
// is 20K, then dfResRatio = 2.5 and dfScaledInvResRatio = 24
// We must then simplify 60 / 24 as 5 / 2, and make sure to
// align tile coordinates on multiple of the 5 numerator
constexpr int MAGICAL = 60;
const double dfScaledInvResRatio = MAGICAL / dfResRatio;
if( dfScaledInvResRatio < 1 || dfScaledInvResRatio > 60 ||
std::abs(std::round(dfScaledInvResRatio) - dfScaledInvResRatio) > 1e-10 )
{
CPLError(CE_Failure, CPLE_AppDefined,
"Unsupported ratio of resolution for "
"ALIGNED_LEVELS between zoom level %d and %d = %g",
nCurLevel-1, nCurLevel, dfResRatio);
return false;
}
const int nScaledInvResRatio = static_cast<int>(
std::round(dfScaledInvResRatio));
int nNumerator = 0;
for( int nDivisor = nScaledInvResRatio; nDivisor >= 2; --nDivisor )
{
if( (MAGICAL % nDivisor) == 0 && (nScaledInvResRatio % nDivisor) == 0 )
{
nNumerator = MAGICAL / nDivisor;
break;
}
}
if( nNumerator == 0 )
{
CPLError(CE_Failure, CPLE_AppDefined,
"Unsupported ratio of resolution for "
"ALIGNED_LEVELS between zoom level %d and %d = %g",
nCurLevel-1, nCurLevel, dfResRatio);
return false;
}
nAccDivisor *= nNumerator;
}
if( nAccDivisor > 1 )
{
nTLTileX = (nTLTileX / nAccDivisor) * nAccDivisor;
nTLTileY = (nTLTileY / nAccDivisor) * nAccDivisor;
nBRTileY = ((nBRTileY + nAccDivisor - 1) / nAccDivisor) * nAccDivisor;
nBRTileX = ((nBRTileX + nAccDivisor - 1) / nAccDivisor) * nAccDivisor;
}
if( nTLTileX < 0 || nTLTileY < 0 ||
nBRTileX > tmList[nZoomLevel].mMatrixWidth ||
nBRTileY > tmList[nZoomLevel].mMatrixHeight )
{
CPLError(CE_Warning, CPLE_AppDefined,
"Raster extent partially outside of tile matrix "
"bounding box. Clamping it to it");
}
nTLTileX = std::max(0, nTLTileX);
nTLTileY = std::max(0, nTLTileY);
nBRTileX = std::min(tmList[nZoomLevel].mMatrixWidth, nBRTileX);
nBRTileY = std::min(tmList[nZoomLevel].mMatrixHeight, nBRTileY);
dfMinX = dfOriX + nTLTileX * dfTileExtent;
dfMinY = dfOriY - nBRTileY * dfTileExtent;
dfMaxX = dfOriX + nBRTileX * dfTileExtent;
dfMaxY = dfOriY - nTLTileY * dfTileExtent;
nXSize = static_cast<int>(std::round((dfMaxX - dfMinX) / dfRes));
nYSize = static_cast<int>(std::round((dfMaxY - dfMinY) / dfRes));
}
else if( !osExtent.empty() || !osRes.empty() )
{
CPLStringList aosTokens(CSLTokenizeString2(osExtent, ",", 0));
if( aosTokens.size() != 4 )
{
CPLError(CE_Failure, CPLE_AppDefined,
"Invalid value for EXTENT");
return false;
}
dfMinX = CPLAtof(aosTokens[0]);
dfMinY = CPLAtof(aosTokens[1]);
dfMaxX = CPLAtof(aosTokens[2]);
dfMaxY = CPLAtof(aosTokens[3]);
if( !osRes.empty() )
dfRes = CPLAtof(osRes);
}
nXSize = static_cast<int>(std::round((dfMaxX - dfMinX) / dfRes));
nYSize = static_cast<int>(std::round((dfMaxY - dfMinY) / dfRes));
osResampling = CSLFetchNameValueDef(papszOptions,
"WARP_RESAMPLING",
CSLFetchNameValueDef(papszOptions,
"RESAMPLING", GetResampling(poSrcDS)));
return true;
}
// Used by gdalwarp
bool COGGetWarpingCharacteristics(GDALDataset* poSrcDS,
const char * const* papszOptions,
CPLString& osResampling,
CPLString& osTargetSRS,
int& nXSize,
int& nYSize,
double& dfMinX,
double& dfMinY,
double& dfMaxX,
double& dfMaxY)
{
std::unique_ptr<gdal::TileMatrixSet> poTM;
int nZoomLevel = 0;
int nAlignedLevels = 0;
return COGGetWarpingCharacteristics(poSrcDS,
papszOptions,
osResampling,
osTargetSRS,
nXSize, nYSize,
dfMinX, dfMinY, dfMaxX, dfMaxY,
poTM, nZoomLevel, nAlignedLevels);
}
/************************************************************************/
/* COGHasWarpingOptions() */
/************************************************************************/
bool COGHasWarpingOptions(CSLConstList papszOptions)
{
return CSLFetchNameValue(papszOptions, "TARGET_SRS") != nullptr ||
!EQUAL(CSLFetchNameValueDef(papszOptions, "TILING_SCHEME", "CUSTOM"),
"CUSTOM");
}
/************************************************************************/
/* COGRemoveWarpingOptions() */
/************************************************************************/
void COGRemoveWarpingOptions(CPLStringList& aosOptions)
{
aosOptions.SetNameValue("TARGET_SRS", nullptr);
aosOptions.SetNameValue("TILING_SCHEME", nullptr);
aosOptions.SetNameValue("EXTENT", nullptr);
aosOptions.SetNameValue("RES", nullptr);
aosOptions.SetNameValue("ALIGNED_LEVELS", nullptr);
aosOptions.SetNameValue("ZOOM_LEVEL_STRATEGY", nullptr);
}
/************************************************************************/
/* CreateReprojectedDS() */
/************************************************************************/
static std::unique_ptr<GDALDataset> CreateReprojectedDS(
const char* pszDstFilename,
GDALDataset *poSrcDS,
const char * const* papszOptions,
const CPLString& osResampling,
const CPLString& osTargetSRS,
const int nXSize,
const int nYSize,
const double dfMinX,
const double dfMinY,
const double dfMaxX,
const double dfMaxY,
GDALProgressFunc pfnProgress,
void * pProgressData,
double& dfCurPixels,
double& dfTotalPixelsToProcess)
{
char** papszArg = nullptr;
// We could have done a warped VRT, but overview building on it might be
// slow, so materialize as GTiff
papszArg = CSLAddString(papszArg, "-of");
papszArg = CSLAddString(papszArg, "GTiff");
papszArg = CSLAddString(papszArg, "-co");
papszArg = CSLAddString(papszArg, "TILED=YES");
papszArg = CSLAddString(papszArg, "-co");
papszArg = CSLAddString(papszArg, "SPARSE_OK=YES");
const char* pszBIGTIFF = CSLFetchNameValue(papszOptions, "BIGTIFF");
if( pszBIGTIFF )
{
papszArg = CSLAddString(papszArg, "-co");
papszArg = CSLAddString(papszArg, (CPLString("BIGTIFF=") + pszBIGTIFF).c_str());
}
papszArg = CSLAddString(papszArg, "-co");
papszArg = CSLAddString(papszArg,
HasZSTDCompression() ? "COMPRESS=ZSTD" : "COMPRESS=LZW");
papszArg = CSLAddString(papszArg, "-t_srs");
papszArg = CSLAddString(papszArg, osTargetSRS);
papszArg = CSLAddString(papszArg, "-te");
papszArg = CSLAddString(papszArg, CPLSPrintf("%.18g,", dfMinX));
papszArg = CSLAddString(papszArg, CPLSPrintf("%.18g,", dfMinY));
papszArg = CSLAddString(papszArg, CPLSPrintf("%.18g,", dfMaxX));
papszArg = CSLAddString(papszArg, CPLSPrintf("%.18g,", dfMaxY));
papszArg = CSLAddString(papszArg, "-ts");
papszArg = CSLAddString(papszArg, CPLSPrintf("%d", nXSize));
papszArg = CSLAddString(papszArg, CPLSPrintf("%d", nYSize));
int bHasNoData = FALSE;
poSrcDS->GetRasterBand(1)->GetNoDataValue(&bHasNoData);
if( !bHasNoData && CPLTestBool(CSLFetchNameValueDef(
papszOptions, "ADD_ALPHA", "YES")) )
{
papszArg = CSLAddString(papszArg, "-dstalpha");
}
papszArg = CSLAddString(papszArg, "-r");
papszArg = CSLAddString(papszArg, osResampling);
papszArg = CSLAddString(papszArg, "-wo");
papszArg = CSLAddString(papszArg, "SAMPLE_GRID=YES");
const char* pszNumThreads = CSLFetchNameValue(papszOptions, "NUM_THREADS");
if( pszNumThreads )
{
papszArg = CSLAddString(papszArg, "-wo");
papszArg = CSLAddString(papszArg, (CPLString("NUM_THREADS=") + pszNumThreads).c_str());
}
const auto poFirstBand = poSrcDS->GetRasterBand(1);
const bool bHasMask = poFirstBand->GetMaskFlags() == GMF_PER_DATASET;
const int nBands = poSrcDS->GetRasterCount();
const char* pszOverviews = CSLFetchNameValueDef(
papszOptions, "OVERVIEWS", "AUTO");
const bool bRecreateOvr = EQUAL(pszOverviews, "FORCE_USE_EXISTING") ||
EQUAL(pszOverviews, "NONE");
dfTotalPixelsToProcess =
double(nXSize) * nYSize * (nBands + (bHasMask ? 1 : 0)) +
((bHasMask && !bRecreateOvr) ? double(nXSize) * nYSize / 3 : 0) +
(!bRecreateOvr ? double(nXSize) * nYSize * nBands / 3: 0) +
double(nXSize) * nYSize * (nBands + (bHasMask ? 1 : 0)) * 4. / 3;
auto psOptions = GDALWarpAppOptionsNew(papszArg, nullptr);
CSLDestroy(papszArg);
if( psOptions == nullptr )
return nullptr;
const double dfNextPixels =
double(nXSize) * nYSize * (nBands + (bHasMask ? 1 : 0));
void* pScaledProgress = GDALCreateScaledProgress(
dfCurPixels / dfTotalPixelsToProcess,
dfNextPixels / dfTotalPixelsToProcess,
pfnProgress, pProgressData );
dfCurPixels = dfNextPixels;
CPLDebug("COG", "Reprojecting source dataset: start");
GDALWarpAppOptionsSetProgress(psOptions, GDALScaledProgress, pScaledProgress );
CPLString osTmpFile(GetTmpFilename(pszDstFilename, "warped.tif.tmp"));
auto hSrcDS = GDALDataset::ToHandle(poSrcDS);
auto hRet = GDALWarp( osTmpFile, nullptr,
1, &hSrcDS,
psOptions, nullptr);
GDALWarpAppOptionsFree(psOptions);
CPLDebug("COG", "Reprojecting source dataset: end");
GDALDestroyScaledProgress(pScaledProgress);
return std::unique_ptr<GDALDataset>(GDALDataset::FromHandle(hRet));
}
/************************************************************************/
/* GDALCOGCreator */
/************************************************************************/
struct GDALCOGCreator final
{
std::unique_ptr<GDALDataset> m_poReprojectedDS{};
std::unique_ptr<GDALDataset> m_poRGBMaskDS{};
CPLString m_osTmpOverviewFilename{};
CPLString m_osTmpMskOverviewFilename{};
~GDALCOGCreator();
GDALDataset* Create(const char * pszFilename,
GDALDataset * const poSrcDS,
char ** papszOptions,
GDALProgressFunc pfnProgress,
void * pProgressData );
};
/************************************************************************/
/* GDALCOGCreator::~GDALCOGCreator() */
/************************************************************************/
GDALCOGCreator::~GDALCOGCreator()
{
if( m_poReprojectedDS )
{
CPLString osProjectedDSName(m_poReprojectedDS->GetDescription());
// Destroy m_poRGBMaskDS before m_poReprojectedDS since the former
// references the later
m_poRGBMaskDS.reset();
m_poReprojectedDS.reset();
VSIUnlink(osProjectedDSName);
}
if( !m_osTmpOverviewFilename.empty() )
{
VSIUnlink(m_osTmpOverviewFilename);
}
if( !m_osTmpMskOverviewFilename.empty() )
{
VSIUnlink(m_osTmpMskOverviewFilename);
}
}
/************************************************************************/
/* GDALCOGCreator::Create() */
/************************************************************************/
GDALDataset* GDALCOGCreator::Create(const char * pszFilename,
GDALDataset * const poSrcDS,
char ** papszOptions,
GDALProgressFunc pfnProgress,
void * pProgressData )
{
if( pfnProgress == nullptr )
pfnProgress = GDALDummyProgress;
if( poSrcDS->GetRasterCount() == 0 )
{
CPLError(CE_Failure, CPLE_NotSupported,
"COG driver does not support 0-band source raster");
return nullptr;
}
CPLConfigOptionSetter oSetterReportDirtyBlockFlushing(
"GDAL_REPORT_DIRTY_BLOCK_FLUSHING", "NO", true);
double dfCurPixels = 0;
double dfTotalPixelsToProcess = 0;
GDALDataset* poCurDS = poSrcDS;
std::unique_ptr<gdal::TileMatrixSet> poTM;
int nZoomLevel = 0;
int nAlignedLevels = 0;
if( COGHasWarpingOptions(papszOptions) )
{
CPLString osTargetResampling;
CPLString osTargetSRS;
int nTargetXSize = 0;
int nTargetYSize = 0;
double dfTargetMinX = 0;
double dfTargetMinY = 0;
double dfTargetMaxX = 0;
double dfTargetMaxY = 0;
if( !COGGetWarpingCharacteristics(poCurDS, papszOptions,
osTargetResampling,
osTargetSRS,
nTargetXSize, nTargetYSize,
dfTargetMinX, dfTargetMinY,
dfTargetMaxX, dfTargetMaxY,
poTM, nZoomLevel, nAlignedLevels) )
{
return nullptr;
}
// Collect information on source dataset to see if it already
// matches the warping specifications
CPLString osSrcSRS;
const auto poSrcSRS = poCurDS->GetSpatialRef();
if( poSrcSRS )
{
const char* pszAuthName = poSrcSRS->GetAuthorityName(nullptr);
const char* pszAuthCode = poSrcSRS->GetAuthorityCode(nullptr);
if( pszAuthName && pszAuthCode )
{
osSrcSRS = pszAuthName;
osSrcSRS += ':';
osSrcSRS += pszAuthCode;
}
}
double dfSrcMinX = 0;
double dfSrcMinY = 0;
double dfSrcMaxX = 0;
double dfSrcMaxY = 0;
double adfSrcGT[6];
const int nSrcXSize = poCurDS->GetRasterXSize();
const int nSrcYSize = poCurDS->GetRasterYSize();
if( poCurDS->GetGeoTransform(adfSrcGT) == CE_None )
{
dfSrcMinX = adfSrcGT[0];
dfSrcMaxY = adfSrcGT[3];
dfSrcMaxX = adfSrcGT[0] + nSrcXSize * adfSrcGT[1];
dfSrcMinY = adfSrcGT[3] + nSrcYSize * adfSrcGT[5];
}
if( nTargetXSize == nSrcXSize &&
nTargetYSize == nSrcYSize &&
osTargetSRS == osSrcSRS &&
fabs(dfSrcMinX - dfTargetMinX) < 1e-10 * fabs(dfSrcMinX) &&
fabs(dfSrcMinY - dfTargetMinY) < 1e-10 * fabs(dfSrcMinY) &&
fabs(dfSrcMaxX - dfTargetMaxX) < 1e-10 * fabs(dfSrcMaxX) &&
fabs(dfSrcMaxY - dfTargetMaxY) < 1e-10 * fabs(dfSrcMaxY) )
{
CPLDebug("COG", "Skipping reprojection step: "
"source dataset matches reprojection specifications");
}
else
{
m_poReprojectedDS =
CreateReprojectedDS(pszFilename, poCurDS,
papszOptions,
osTargetResampling,
osTargetSRS,
nTargetXSize, nTargetYSize,
dfTargetMinX, dfTargetMinY,
dfTargetMaxX, dfTargetMaxY,
pfnProgress, pProgressData,
dfCurPixels, dfTotalPixelsToProcess);
if( !m_poReprojectedDS )
return nullptr;
poCurDS = m_poReprojectedDS.get();
}
}
CPLString osCompress = CSLFetchNameValueDef(papszOptions, "COMPRESS", "NONE");
if( EQUAL(osCompress, "JPEG") &&
poCurDS->GetRasterCount() == 4 )
{
char** papszArg = nullptr;
papszArg = CSLAddString(papszArg, "-of");
papszArg = CSLAddString(papszArg, "VRT");
papszArg = CSLAddString(papszArg, "-b");
papszArg = CSLAddString(papszArg, "1");
papszArg = CSLAddString(papszArg, "-b");
papszArg = CSLAddString(papszArg, "2");
papszArg = CSLAddString(papszArg, "-b");
papszArg = CSLAddString(papszArg, "3");
papszArg = CSLAddString(papszArg, "-mask");
papszArg = CSLAddString(papszArg, "4");
GDALTranslateOptions* psOptions = GDALTranslateOptionsNew(papszArg, nullptr);
CSLDestroy(papszArg);
GDALDatasetH hRGBMaskDS = GDALTranslate("",
GDALDataset::ToHandle(poCurDS),
psOptions,
nullptr);
GDALTranslateOptionsFree(psOptions);
if( !hRGBMaskDS )
{
return nullptr;
}
m_poRGBMaskDS.reset( GDALDataset::FromHandle(hRGBMaskDS) );
poCurDS = m_poRGBMaskDS.get();
}
const int nBands = poCurDS->GetRasterCount();
const int nXSize = poCurDS->GetRasterXSize();
const int nYSize = poCurDS->GetRasterYSize();
CPLString osBlockSize(CSLFetchNameValueDef(papszOptions, "BLOCKSIZE", ""));
if( osBlockSize.empty() )
{
if( poTM )
{
osBlockSize.Printf("%d", poTM->tileMatrixList()[0].mTileWidth);
}
else
{
osBlockSize = "512";
}
}
const int nOvrThresholdSize = atoi(osBlockSize);
const auto poFirstBand = poCurDS->GetRasterBand(1);
const bool bHasMask = poFirstBand->GetMaskFlags() == GMF_PER_DATASET;
CPLString osOverviews = CSLFetchNameValueDef(
papszOptions, "OVERVIEWS", "AUTO");
const bool bRecreateOvr = EQUAL(osOverviews, "FORCE_USE_EXISTING") ||
EQUAL(osOverviews, "NONE");
const bool bGenerateMskOvr =
!bRecreateOvr &&
bHasMask &&
(nXSize > nOvrThresholdSize || nYSize > nOvrThresholdSize) &&
(EQUAL(osOverviews, "IGNORE_EXISTING") ||
poFirstBand->GetMaskBand()->GetOverviewCount() == 0);
const bool bGenerateOvr =
!bRecreateOvr &&
(nXSize > nOvrThresholdSize || nYSize > nOvrThresholdSize) &&
(EQUAL(osOverviews, "IGNORE_EXISTING") ||
poFirstBand->GetOverviewCount() == 0);
std::vector<std::pair<int, int>> asOverviewDims;
int nTmpXSize = nXSize;
int nTmpYSize = nYSize;
if( poTM )
{
const auto& tmList = poTM->tileMatrixList();
int nCurLevel = nZoomLevel;
while( nTmpXSize > nOvrThresholdSize || nTmpYSize > nOvrThresholdSize )
{
const double dfResRatio = (nCurLevel >= 1) ?
tmList[nCurLevel-1].mResX / tmList[nCurLevel].mResX : 2;
nTmpXSize = static_cast<int>(nTmpXSize / dfResRatio + 0.5);
nTmpYSize = static_cast<int>(nTmpYSize / dfResRatio + 0.5);
asOverviewDims.push_back(std::pair<int,int>(nTmpXSize, nTmpYSize));
nCurLevel --;
}
}
else
{
while( nTmpXSize > nOvrThresholdSize || nTmpYSize > nOvrThresholdSize )
{
nTmpXSize /= 2;
nTmpYSize /= 2;
asOverviewDims.push_back(std::pair<int,int>(nTmpXSize, nTmpYSize));
}
}
if( dfTotalPixelsToProcess == 0.0 )
{
dfTotalPixelsToProcess =
(bGenerateMskOvr ? double(nXSize) * nYSize / 3 : 0) +
(bGenerateOvr ? double(nXSize) * nYSize * nBands / 3: 0) +
double(nXSize) * nYSize * (nBands + (bHasMask ? 1 : 0)) * 4. / 3;
}
CPLStringList aosOverviewOptions;
aosOverviewOptions.SetNameValue("COMPRESS",
CPLGetConfigOption("COG_TMP_COMPRESSION", // only for debug purposes
HasZSTDCompression() ? "ZSTD" : "LZW"));
aosOverviewOptions.SetNameValue("NUM_THREADS",
CSLFetchNameValue(papszOptions, "NUM_THREADS"));
aosOverviewOptions.SetNameValue("BIGTIFF", "YES");
aosOverviewOptions.SetNameValue("SPARSE_OK", "YES");
if( bGenerateMskOvr )
{
CPLDebug("COG", "Generating overviews of the mask: start");
m_osTmpMskOverviewFilename = GetTmpFilename(pszFilename, "msk.ovr.tmp");
GDALRasterBand* poSrcMask = poFirstBand->GetMaskBand();
const char* pszResampling = CSLFetchNameValueDef(papszOptions,
"OVERVIEW_RESAMPLING",
CSLFetchNameValueDef(papszOptions,
"RESAMPLING", GetResampling(poSrcDS)));
double dfNextPixels = dfCurPixels + double(nXSize) * nYSize / 3;
void* pScaledProgress = GDALCreateScaledProgress(
dfCurPixels / dfTotalPixelsToProcess,
dfNextPixels / dfTotalPixelsToProcess,
pfnProgress, pProgressData );
dfCurPixels = dfNextPixels;
// Used by GDALRegenerateOverviews() and GDALRegenerateOverviewsMultiBand()
CPLConfigOptionSetter oSetterRegeneratedBandIsMask(
"GDAL_REGENERATED_BAND_IS_MASK", "YES", true);
CPLErr eErr = GTIFFBuildOverviewsEx(
m_osTmpMskOverviewFilename,
1, &poSrcMask,
static_cast<int>(asOverviewDims.size()),
nullptr, asOverviewDims.data(),
pszResampling,
aosOverviewOptions.List(),
GDALScaledProgress, pScaledProgress );
CPLDebug("COG", "Generating overviews of the mask: end");
GDALDestroyScaledProgress(pScaledProgress);
if( eErr != CE_None )
{
return nullptr;
}
}
if( bGenerateOvr )
{
CPLDebug("COG", "Generating overviews of the imagery: start");
m_osTmpOverviewFilename = GetTmpFilename(pszFilename, "ovr.tmp");
std::vector<GDALRasterBand*> apoSrcBands;
for( int i = 0; i < nBands; i++ )
apoSrcBands.push_back( poCurDS->GetRasterBand(i+1) );
const char* pszResampling = CSLFetchNameValueDef(papszOptions,
"OVERVIEW_RESAMPLING",
CSLFetchNameValueDef(papszOptions,
"RESAMPLING", GetResampling(poSrcDS)));
double dfNextPixels = dfCurPixels + double(nXSize) * nYSize * nBands / 3;
void* pScaledProgress = GDALCreateScaledProgress(
dfCurPixels / dfTotalPixelsToProcess,
dfNextPixels / dfTotalPixelsToProcess,
pfnProgress, pProgressData );
dfCurPixels = dfNextPixels;
if( nBands > 1 )
{
aosOverviewOptions.SetNameValue("INTERLEAVE", "PIXEL");
}
if( !m_osTmpMskOverviewFilename.empty() )
{
aosOverviewOptions.SetNameValue("MASK_OVERVIEW_DATASET",
m_osTmpMskOverviewFilename);
}
CPLErr eErr = GTIFFBuildOverviewsEx(
m_osTmpOverviewFilename,
nBands, &apoSrcBands[0],
static_cast<int>(asOverviewDims.size()),
nullptr, asOverviewDims.data(),
pszResampling,
aosOverviewOptions.List(),
GDALScaledProgress, pScaledProgress );
CPLDebug("COG", "Generating overviews of the imagery: end");
GDALDestroyScaledProgress(pScaledProgress);
if( eErr != CE_None )
{
return nullptr;
}
}
CPLStringList aosOptions;
aosOptions.SetNameValue("COPY_SRC_OVERVIEWS", "YES");
aosOptions.SetNameValue("COMPRESS", osCompress);
aosOptions.SetNameValue("TILED", "YES");
aosOptions.SetNameValue("BLOCKXSIZE", osBlockSize);
aosOptions.SetNameValue("BLOCKYSIZE", osBlockSize);
const char* pszPredictor = CSLFetchNameValueDef(papszOptions, "PREDICTOR", "FALSE");
if( EQUAL(pszPredictor, "YES") || EQUAL(pszPredictor, "ON") || EQUAL(pszPredictor, "TRUE") )
{
if( GDALDataTypeIsFloating(poSrcDS->GetRasterBand(1)->GetRasterDataType()) )
aosOptions.SetNameValue("PREDICTOR", "3");
else
aosOptions.SetNameValue("PREDICTOR", "2");
}
else if( EQUAL(pszPredictor, "STANDARD") || EQUAL(pszPredictor, "2") )
{
aosOptions.SetNameValue("PREDICTOR", "2");
}
else if( EQUAL(pszPredictor, "FLOATING_POINT") || EQUAL(pszPredictor, "3") )
{
aosOptions.SetNameValue("PREDICTOR", "3");
}
const char* pszQuality = CSLFetchNameValue(papszOptions, "QUALITY");
if( EQUAL(osCompress, "JPEG") )
{
aosOptions.SetNameValue("JPEG_QUALITY", pszQuality);
if( nBands == 3 )
aosOptions.SetNameValue("PHOTOMETRIC", "YCBCR");
}
else if( EQUAL(osCompress, "WEBP") )
{
if( pszQuality && atoi(pszQuality) == 100 )
aosOptions.SetNameValue("WEBP_LOSSLESS", "YES");
aosOptions.SetNameValue("WEBP_LEVEL", pszQuality);
}
else if( EQUAL(osCompress, "DEFLATE") || EQUAL(osCompress, "LERC_DEFLATE") )
{
aosOptions.SetNameValue("ZLEVEL",
CSLFetchNameValue(papszOptions, "LEVEL"));
}
else if( EQUAL(osCompress, "ZSTD") || EQUAL(osCompress, "LERC_ZSTD") )
{
aosOptions.SetNameValue("ZSTD_LEVEL",
CSLFetchNameValue(papszOptions, "LEVEL"));
}
if( STARTS_WITH_CI(osCompress, "LERC") )
{
aosOptions.SetNameValue("MAX_Z_ERROR",
CSLFetchNameValue(papszOptions, "MAX_Z_ERROR"));
}
aosOptions.SetNameValue("BIGTIFF",
CSLFetchNameValue(papszOptions, "BIGTIFF"));
aosOptions.SetNameValue("NUM_THREADS",
CSLFetchNameValue(papszOptions, "NUM_THREADS"));
aosOptions.SetNameValue("GEOTIFF_VERSION",
CSLFetchNameValue(papszOptions, "GEOTIFF_VERSION"));
aosOptions.SetNameValue("SPARSE_OK",
CSLFetchNameValue(papszOptions, "SPARSE_OK"));
if( EQUAL( osOverviews, "NONE") )
{
aosOptions.SetNameValue("@OVERVIEW_DATASET", "");
}
else
{
if( !m_osTmpOverviewFilename.empty() )
{
aosOptions.SetNameValue("@OVERVIEW_DATASET", m_osTmpOverviewFilename);
}
if( !m_osTmpMskOverviewFilename.empty() )
{
aosOptions.SetNameValue("@MASK_OVERVIEW_DATASET", m_osTmpMskOverviewFilename);
}
}
const CPLString osTilingScheme(CSLFetchNameValueDef(papszOptions,